All ProTour teams are automatically included in the field for World Tour races but Katusha were excluded from the original line-up after the UCI withdrew their top flight license.
But after the Court of Arbitration for Sport granted the Russians a ProTeam license on appeal, they will become the 23rd team at the Corsa Rosa.
The 19 ProTour teams will be joined by the four wildcards announced in January - Androni Giocattoli. Bardiani Valvole – CSF inox, Colombia and Vini Fantini.
Previous rules stated the maximum number of riders participating in a race could not exceed 200 but an exemption has been made to allow 207 riders to start in Napoli next month.
Below are the 23 teams participating at the Giro d’Italia:
AG2R LA MONDIALE (FRA)
ANDRONI GIOCATTOLI – VENEZUELA (ITA)
ASTANA PRO TEAM (KAZ)
BARDIANI VALVOLE – CSF INOX (ITA)
BLANCO PRO CYCLING TEAM (NED)
BMC RACING TEAM (USA)
EUSKALTEL – EUSKADI (ESP)
GARMIN – SHARP (USA)
LAMPRE – MERIDA (ITA)
LOTTO BELISOL (BEL)
MOVISTAR TEAM (ESP)
OMEGA PHARMA – QUICK-STEP CYCLING TEAM (BEL)
ORICA - GREENEDGE (AUS)
RADIOSHACK LEOPARD (LUX)
SKY PROCYCLING (GBR)
TEAM ARGOS – SHIMANO (NED)
TEAM SAXO - TINKOFF (DEN)
VACANSOLEIL – DCM PRO CYCLING TEAM (NED)
VINI FANTINI – SELLE ITALIA (ITA)